Henry green



(No ModeL) H. I GREEN.

INGANDESGENT ELECTRIC LAMP.

No. 475,394. Patented May 24, 189.2.

UNITED STATES PATENT @rrrcn.

HENRY GREEN, OF HARTFORD, CONNECTICUT, ASSIGNOR OF ONE-HALF TO GEO. S.MILLER, OF SAME PLACE.

INCANDESCENT ELECTRIC LAMP.

SPECIFICATION forming part of Letters Patent No. 475,394, dated May 24,1892.

Application filed August 22, 1891. Serial No. 403,495. (No model.)

To all whom it may concern:

Be it known that I, HENRY GREEN, a citizen of the United States, and aresident of Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inIncandescent Electric Lamps, of which the following is a specification.

This invention has relation to an improveto ment in incandescent lamps;and it has for its object to so construct a lamp that a circuit may beformed with the filament through the circuit wires or conductors in therecess of the neck of the lamp without the aid of any filling in, suchas-annular rings, plaster-ofparis, or contact supporting-blocks.

A further object of the invent-ion is to attach the circuit Wires orconductors to the inside of the neck of the bulb or on its upper edge bythe fusion of one or more spots of glass or cement, causing said wiresto be,

trained up the interior of the neck and sealed thereto.

Other objects and advantages will appear from the following descriptionand claims when taken in connection with the annexed drawing, in whichthe figure is a sectional View of an incandescent lamp, showing themethod of attachment of the outer ends of 3c the circuit wires orconductors to the interior of the neck of the bulb by fusion of glassthereon, and the neck of the bulb fashioned with little beads,projections, or recesses for the purpose of securing said bulb into aholder or socket.

Referring byletters to said drawing,A A indicate the circuit wires orconductors which are trained up on either side of the bellshaped recessin the head of the bulb and secured to the top by fusion of glass at thepoints marked (1 d, and B B indicate two little beads or projections ofglass, one on each side of the head cc, for the purpose of securing thebulb into the holder or key-socket. This head 0 0 may have depressionsin the sides (not annular) which will answer the same purpose as theprojections.

Having thus described my invention, what I claim is -1. In anincandescent lamp made entirely 0 of glass, a pair of circuit Wires orconductors attached in the usual manner to the platinum wires andtrained up the sides of the hollow recess in the center of the neck ofthe lamp and fastened thereto by the fusion of a small portion of glass,substantially as specified.

2. In combination with an incandescent lamp made entirely of glass, apair of circuit wires or conductors attached in the usual manner to theplatinum wires and trained up the sides of a hollow recess in the neckof the lamp and secured thereto by the fusion of a small portion ofglass, and a number of beadlike projections or spurs round the outerportion of the neck of the lamp for the purpose of retaining said bulbin the holder or socket, substantially as specified.

Signed at New York, in the county of Queens and State of New York, this17th day of August, A. D. 1891.

HENRY GREEN.

Witnesses:

DENIS J. MCCARTHY, JAMES GAULT.

